Hello @BabSimon, It seems like you posted this a while ago, but I wanted to take a moment to provide a response in case others have a similar question. The output you shared appears to be from the show flogi database detail command, where two PWWNs a...

@manoj-singh for indepth troubleshooting like this, it would be best to open a service request with Cisco or your partner to assist you with your configuration.

Hi Manoj, Yes, you are correct — both switches need to have the same VSANs created and the zoning mode (Basic or Enhanced) configured before bringing up the ISL. If they mismatch, the E-Port or port-channel will flap or stay down due to a zone merge ...